Install twine to user (#826)

Author: seanpmorgan

.travis.yml

@@ -26,7 +26,7 @@ jobs:
       # Build GPU kernels without runtime=nvidia as there are no GPUs/Drivers
       - docker run -e TF_NEED_CUDA=1 -v ${PWD}:/addons -w /addons gcr.io/tensorflow-testing/nosla-cuda10.1-cudnn7-ubuntu16.04-manylinux2010 tools/ci_build/builds/release_linux.sh
       after_success:
-        - python -m pip install -q -U twine --ignore-installed six
+        - python -m pip install --user -q -U twine --ignore-installed six
         - twine upload -u $PYPI_USER -p $PYPI_PW wheelhouse/*.whl
 
     # MacOS Builds
@@ -37,7 +37,7 @@ jobs:
       script:
         - bash -x -e tools/ci_build/builds/release_macos.sh
       after_success:
-        - python -m pip install -q -U twine --ignore-installed six
+        - python -m pip install --user -q -U twine --ignore-installed six
         - twine upload -u $PYPI_USER -p $PYPI_PW wheelhouse/*.whl
 
     # Windows Builds
@@ -60,7 +60,7 @@ jobs:
         - export PATH=/c/Python37:/c/Python37/Scripts:$PATH
         - bash -x -e tools/ci_build/builds/release_windows.sh
       after_success:
-        - python -m pip install -q -U twine --ignore-installed six
+        - python -m pip install --user -q -U twine --ignore-installed six
         - twine upload -u $PYPI_USER -p $PYPI_PW artifacts/*.whl
 
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